<template>
  <div>
    <el-row type="flex" justify="end">
      <el-select v-model="currentYear" size="small" style="width: 120px" @change="dateChange">
        <el-option v-for="item in yearList" :key="item" :label="item" :value="item">{{ item }}</el-option>
      </el-select>
      <el-select v-model="currentMonth" size="small" style="width: 120px;margin-left:10px" @change="dateChange">
        <el-option v-for="item in 12" :key="item" :label="item" :value="item">{{ item }}</el-option>
      </el-select>
    </el-row>
    <el-calendar v-model="currentDate">
      <template v-slot:dateCell="{ date, data }" class="content">
        <div class="date-content">
          <span class="text"> {{ data.day | getDay }}</span>
          <span v-if="isWeek(date)" class="rest">加班</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  filters: {
    getDay(oldVal) {
      return oldVal.split('-')[2]
    }
  },
  data() {
    const currentDate = new Date()
    const currentMonth = currentDate.getMonth() + 1
    const currentYear = currentDate.getFullYear()
    const yearList = []
    for (let i = 0; i < 11; i++) {
      yearList.push(currentYear - 5 + i)
    }
    console.log(yearList)
    return {
      currentDate,
      currentMonth,
      currentYear,
      yearList
    }
  },
  methods: {
    dateChange() {
      // 重新计算 currentDate 触发日历更新即可
      this.currentDate = new Date(`${this.currentYear}-${this.currentMonth}`)
    },
    isWeek(date) {
      // 根据传入的日期是否为周末, 返回 true / false
      return date.getDay() === 6 || date.getDay() === 0
    }
  }
}
</script>

<style  scoped>
 /deep/ .el-calendar-day {
  height:  auto;
 }
 /deep/ .el-calendar-table__row td,/deep/ .el-calendar-table tr td:first-child,  /deep/ .el-calendar-table__row td.prev{
  border:none;
 }
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  /* border-radius: 50%; */
  background: red;
  width: 40px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text{
  width: 20px;
  height: 20px;
  line-height: 20px;
 display: inline-block;

}
 /deep/ .el-calendar-table td.is-selected .text{
   background: #409eff;
   color: #fff;
   border-radius: 50%;
 }
 /deep/ .el-calendar__header {
   display: none
 }
</style>
